QSFP+ Cable Cisco QSFP-H40G-CU5M= 5m

The QSFP+ Cable Cisco QSFP-H40G-CU5M= 5m is a 40-Gigabit QSFP+ direct-attach copper cable designed for short-reach, high-density connections in data center environments. It provides a QSFP+ connector at each end to link switches, routers and servers with a low-latency, high-bandwidth copper connection suitable for 40GbE and InfiniBand networks.

Advantages

This 5-meter QSFP+ cable offers a hot-pluggable, low-power alternative to optics, delivering compact, cost-effective connectivity for high-density installations. It maintains signal integrity over short distances, reduces the need for separate transceivers, and simplifies cabling between compatible QSFP+ ports while supporting standard 40-Gigabit applications.

Suitable for

• Interconnecting switches and servers in data centers
• Short-reach 40GbE links and InfiniBand connections
• High-density rack installations requiring QSFP+ ports

Key specifications

• Brand: Cisco
• Model / MPN: QSFP-H40G-CU5M=
• Length: 5 m
• Connector type: QSFP+ to QSFP+
• Data rate: 40 Gigabit (parallel channels)
• Media: Direct-attach copper (DAC)
• Typical use: Short-reach connections in switches, routers, and servers

How to use

Insert each QSFP+ connector into the corresponding QSFP+ port on network equipment until it seats firmly; the cable is hot-swappable and requires no additional configuration. For breakout scenarios, use compatible breakout modules or QSFP+ to SFP+ adapters as supported by your devices. Verify link status on the connected equipment and ensure firmware or drivers support DAC cables if required.

Recommendations

Use this Cisco QSFP+ 5m cable for short-distance, high-density interconnects within the same rack or adjacent racks. Avoid routing across long horizontal runs; for longer distances, consider optical transceivers and fiber cabling. Handle connectors carefully to prevent damage and ensure ports are free of debris before insertion.